Why Do Some Quasars Have Redshifts Greater Than 1

question 15

Multiple Choice

Why do some quasars have redshifts greater than 1?

• A)They are made of different elements than any other objects in the universe.
• B)They are very distant, with relativistic redshifts that take into account dilation of space-time,as Einstein predicted.
• C)They are made of tachyons and thus are able to move away from us faster than the speed oflight.
• D)Einstein proved it is impossible to have a redshift greater than 1; these are all due togravitational lensing tricking us.
• E)They are moving towards us, which throws off our spectrometers.

---

Definitions:

Exercise

Exercise is a physical activity that is carried out to maintain or improve health and fitness, involving bodily movements that enhance physical strength, endurance, and flexibility.

Fasting

The voluntary abstention from eating and sometimes drinking for a defined period of time for health, religious, or other reasons.

Hypothalamus

An area in the brain situated beneath the thalamus, which is responsible for regulating the autonomic nervous system and the pituitary gland's function, overseeing the regulation of body temperature, thirst, hunger, and other systems that maintain bodily equilibrium.

Brain

The central organ of the nervous system, housed within the skull, responsible for complex functions such as thought, memory, emotion, and motor skills.